Note 7 - Loans And Related Allowance For Loan Losses (Details) - Primary Segments of the Loan Portfolio (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Primary Segments of the Loan Portfolio [Line Items]
Individually evaluated for impairment	$ 17,658	$ 21,288
Collectively evaluated for impairment	394,741	387,145
Total loans	412,399	408,433
Commercial and Industrial [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Primary Segments of the Loan Portfolio [Line Items]
Individually evaluated for impairment	2,310	4,592
Collectively evaluated for impairment	47,588	57,596
Total loans	49,898	62,188
Real Estate Construction [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Primary Segments of the Loan Portfolio [Line Items]
Individually evaluated for impairment	3,927	3,993
Collectively evaluated for impairment	20,157	18,529
Total loans	24,084	22,522
Residential Real Estate Mortgage [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Primary Segments of the Loan Portfolio [Line Items]
Individually evaluated for impairment	4,905	5,761
Collectively evaluated for impairment	194,345	198,111
Total loans	199,250	203,872
Commercial Real Estate Mortgage [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Primary Segments of the Loan Portfolio [Line Items]
Individually evaluated for impairment	6,506	6,914
Collectively evaluated for impairment	128,500	108,820
Total loans	135,006	115,734
Consumer Installment [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Primary Segments of the Loan Portfolio [Line Items]
Individually evaluated for impairment	10	28
Collectively evaluated for impairment	4,151	4,089
Total loans	$ 4,161	$ 4,117